Just like any other organisms, individual bacteria can undergo random mutations. Many of these mutations are harmful or useless, but every now and then one comes along that gives its organism an edge in survival. And for a bacterium a mutation making it resistant to a certain antibiotic gives quite the edge.

What's the main idea of this? (10 words or less.)

Which plains area lies in both the united states and canada? altiplano central canadian shield coastal plains great plains

How did the miller-urey experiment impact the way scientists think about the origins of life? use what you know about the miller-urey experiments to discuss the factors needed for life to arise, and speculate on whether life could arise on another planet.

The endoplasmic reticulum (er) is an organelle in some cells. in these cells, it is continuous with the nuclear membrane and forms a large part of the cell\'s total membrane. sort the phrases below as describing rough er, smooth er, both, or neither. note: if you answer any part of this question incorrectly, a single red x will appear indicating that one or more of the phrases are sorted incorrectly.1) found in prokaryites and uekaryotys2) involved in protein synthesis3) involve in lipid synthesis4) contains molecular chaperones in lumen5) bound with ribosomes6) involved in toxin or drug metabolism7) large systemot internnected tubules,vesicles, and sacs8) "packages" enzymes in vesicles for secretion.